222121012103 has 16 divisors (see below), whose sum is σ = 226830240000. Its totient is φ = 217444654080.

The previous prime is 222121012093. The next prime is 222121012213. The reversal of 222121012103 is 301210121222.

It is a cyclic number.

It is not a de Polignac number, because 222121012103 - 2¹⁸ = 222120749959 is a prime.

It is a super-2 number, since 2×222121012103² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121012303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21151148 + ... + 21161646.

It is an arithmetic number, because the mean of its divisors is an integer number (14176890000).

Almost surely, 2^222121012103 is an apocalyptic number.

222121012103 is a deficient number, since it is larger than the sum of its proper divisors (4709227897).

222121012103 is a wasteful number, since it uses less digits than its factorization.

222121012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12022.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 222121012103 its reverse (301210121222), we get a palindrome (523331133325).

The spelling of 222121012103 in words is "two hundred twenty-two billion, one hundred twenty-one million, twelve thousand, one hundred three".